About Four Corners

Four Corners Building Supply focuses on separating itself from the competition by setting a new standard on attention to detail, both with quality and customer service.

Four Corners was founded on the core principles of listening to and understanding the client’s needs, having an extensive product knowledge, and exceeding timeline expectations. Our company continues to grow based off these principles and the strong relationships we are forming throughout the building supply industry. Our primary market services the millwork and woodworking needs for interior spaces. We stock and produce architectural mouldings, as well as craft radius mouldings and custom paneling. In addition, we distribute and build doors for any size project.

Four Corners Building Supply is a full-service lumber yard with an expansive product inventory. We provide a wide array of exterior and interior building supplies from industry leading manufacturers for clients to complete projects of any size. Our team is comprised of personnel with extensive technical product knowledge and we are positioned to provide the highest quality service throughout the greater Charleston area. 

A high-level list of exterior and interior building supplies that we provide include:

  • Framing and Engineered Products
  • Exterior Trim, Siding and Doors
  • Interior Millwork and Doors
  • Windows, Decking, and Hardware/Tooling
  • Structural Building Components
  • Millwork and Door Manufacturing


  • Exceptional sales personnel with over 20 years’ combined experience in job estimating and blue print take-offs to meet all client budget conditions
  • Tenured delivery staff with attention to detail that strive to exceed client expectations
  • Continuously strive to shorten lead times with vendors, permitting flexibility for clients
  • Millwork and door installation, as applicable